Question (267/279)

Blue planet in solar system is?

---

(A)  Earth

---

(B)  Mars

---

(C)  Venus

---

(D)  None of these

---

Premium Register as premium memeber to know answer & explanation. Only INR 10/Month.

Question (268/279)

Which one of the following is found in abundance in Earth's atmosphere?

---

(A)  Argon

---

(B)  Oxygen

---

(C)  Nitrogen

---

(D)  Carbon Dioxide

---

Premium Register as premium memeber to know answer & explanation. Only INR 10/Month.